805 Moparkid
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Who Makes Cams
- Thread starter 805moparkid
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Trust me when I say I appreciate all that you've said,but there's one BIG factor not in your equation !!And that would be the ***** factor !!! And I have to live with her!!
She'll like the turbo; smooth idle, quiet, good hiway gear... low-maintenance; more time for HER.
Been there; done that...
rayer:
6pakattack
Well-Known Member
Yeah,but you won't sell me your Exhaust Manifold !!:sad11:
805moparkid
Slant and AFX Guy
there is no reason for 1.5 or 1.6's with this cam... no slant heads flow over .550 so this is a good setup given i can figure out the 1" lifter
so i would have some checking for any geometry issues that might pop up but i think i should be alright when the time comes...
You probably don't need it.
When that header was built, we didn't think things though very well; we were too steeped in the tradion of conventional header design as it applies to naturally-aspirated engines.
In the year that followed, I got to thinking about the tremendous amount of surface area those six pipes exhibit, and the egregious amount of HEAT radiating from them, especially, under boost!
I began to wonder whether we may have shot ourselves in the foot with this pretty, but maybe, performance-killing piece of metallic art.
The jury is still out.
The guy who coated it said, unequivocally, do NOT wrap this header. He contended that it would split welds, damage the coating, and generally raise hell with the integrity of the whole thing.
So, what are the alternatives?
They say that simply attaching a turbo to the stock exhaust manifold's outlet, will inevitably cause the manifold to crack.
The accepted "fix" (prevention of cracks) is to attach an elbow (90-degrees?) to the manifold outlet, support the turbo externally, and attach it to the elbow.
So how can this stock manifold flow well enough to deal with all that exhaust created by 25+ pounds of boost???
Well, that's the $64,000 qquestion, but for sure, that stock exhaust manifold won't be radiating the kind (amount) of BTU's (heat) that the 6-runner header will...
Down the road, I hope to learn the answer to all that...
But, for now, we'll use that header because Freddie and I spent about a thousand bucks (no kidding) on it... really, and Freddie spent countless hours fabrcating it.
Here is a picture of the item in question...
Charrlie_S
Well-Known Member
Charrlie_S
Well-Known Member
Sleve the lifter bores, and use either a air cooled VW or Ford "Y" block mushroom lifter.
Could have told ya not to call mike c at crane.
Crane AINT crane anymore. They tanked, got bought out by s&s and havnt been the same ever since reopening.
Talked to the same guy in my quest for a competent grinder/cam designer for my sb's. Wouldnt trust him/them to grind a 50cc honda let alone REGRIND a slant cam. I got new (slant) cores from isky, and had lunati grind as forementioned. Did you bother to call either them? Shoot, isky has whatever straight grind you could dream up for your head that flows over 70% ex of the intake. Couldnt possible be due to almost identical port size could it? Think about velocity due to valve size at all? Too big on the exh and it drops, a lot. Which throws your 81% out the window. Be pushing more unspent fuel out the pipes than ever before. Esp without enough ign to burn it.
Will be interesting to see how the big single pattern works out on a split header. 6 into one mp with split grind scavenged better, at least for me. Musta been an isolated incedent. Only tried at least half a doz cams, multiple head configurations, couple of clifford intakes (they dont all work the same) offys, etc. But this was all 10 yrs ago, slant tech must have advanced dramatically since then.
Good luck
Crane AINT crane anymore. They tanked, got bought out by s&s and havnt been the same ever since reopening.
Talked to the same guy in my quest for a competent grinder/cam designer for my sb's. Wouldnt trust him/them to grind a 50cc honda let alone REGRIND a slant cam. I got new (slant) cores from isky, and had lunati grind as forementioned. Did you bother to call either them? Shoot, isky has whatever straight grind you could dream up for your head that flows over 70% ex of the intake. Couldnt possible be due to almost identical port size could it? Think about velocity due to valve size at all? Too big on the exh and it drops, a lot. Which throws your 81% out the window. Be pushing more unspent fuel out the pipes than ever before. Esp without enough ign to burn it.
Will be interesting to see how the big single pattern works out on a split header. 6 into one mp with split grind scavenged better, at least for me. Musta been an isolated incedent. Only tried at least half a doz cams, multiple head configurations, couple of clifford intakes (they dont all work the same) offys, etc. But this was all 10 yrs ago, slant tech must have advanced dramatically since then.
Good luck
805moparkid
Slant and AFX Guy
i sent an email to isky and lunati with no response... will have to call...
and yea a split cam with a .408/252 intake with like a .39x/246 would probably be nice
805moparkid
Slant and AFX Guy
why would i have to sleeve the bores? could they just be bored out?
and vw or y blocks huh... dad has a 312 in a thunderbird...
one issue i could think of with a mushroom... wouldn't i have to take the pan off and install them before the cam goes in?
1wild&crazyguy
Banned
it sounds like bill was saying the VW lifters or smaller...so bushing the lifter to size work work, they have a wide face on them=''mushroom''.
i think u need to install them from the pan side of the block. fwiw
the smaller header tube 1 1/2 of the mp moves exhaust faster, though i wonder about a 1 1/2 to 1 5/8 stepped primary tube header would do...
i think u need to install them from the pan side of the block. fwiw
the smaller header tube 1 1/2 of the mp moves exhaust faster, though i wonder about a 1 1/2 to 1 5/8 stepped primary tube header would do...
805moparkid
Slant and AFX Guy
yea i dont like the idea of a mushroom lifter... i dont want to not be able to remove the lifters...
i was talking with oregon cam grings and it sounds like they might have a lifter that will work so i might buy one and compare to a stock slant lifter...
as for the headers i want to build a set of three step headers from 1.5>1 5/8> 1 11/16...
805moparkid
Slant and AFX Guy
oh i know about clifford lol...
and i currently have an Erson .475/246 @ .050 cam right now... no complaints other than lift...
N1ckx
New Member
A good cam maker I know of only sells to engine builders but you may be able to get contact of Terry Kirk of custom cams he may sell to the public not sure totally ,but he has billet roller blanks as well as any grind you want. He does alot of high end nascar cams and pro stock cams in NHRA.
According to Ed, Schneider has some.
All I've heard is, that you can get one made for $1,000.00.
That's a little out of my price range, unfortunately...:disgust:
N1ckx
New Member
Yes he has billet roller blanks for around 800 to 1k for a custom grind. Its pricey but he is definately a good cam specialist
1wild&crazyguy
Banned
and bb roller lifters?
805moparkid
Slant and AFX Guy
yea 440 rollers... probably need to change the bar width though
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